The Best GMC Repair in Garrison, NY

Compare the highest-rated gmc repair mechanics in Garrison, New York. All shops are licensed, insured, and verified through our rigorous screening process.

#1

Auto Tech of the Highlands

4.8
(180 reviews)
Verified

A highly respected, family-owned auto repair shop known for its technical expertise and honest service. They are a NAPA AutoCare Center, which provides them with access to top-tier parts and ongoing technical training. They have specific, documented experience with complex diagnostics on modern GMC trucks, including Duramax diesel performance issues and Allison transmission servicing.

1430 Route 9, Cold Spring, NY 10516

Specialties & Features

Duramax diesel service
Allison transmission repair
EcoTec engine diagnostics

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

C & S Auto Repair

4.7
(130 reviews)
Verified

A well-established local shop with a strong focus on American trucks and SUVs. Their technicians have ASE certifications and are particularly adept at handling mechanical and electrical systems on GMC Sierras, Yukons, and Denalis. They receive consistent praise for their work on 4WD systems, suspension repairs, and resolving complex electronic gremlins common in luxury trims.

2460 Route 9, Cold Spring, NY 10516

Specialties & Features

4WD and towing system service
Denali luxury features and electronics
heavy-duty truck suspension

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

Putnam Valley Service Center

4.6
(95 reviews)
Verified

Located a short drive from Garrison, this shop has built a solid reputation for dependable service on daily drivers and work trucks alike. They offer comprehensive maintenance and repair services and have specific expertise in towing package maintenance and transmission services. They are a go-to for locals needing reliable work on their heavy-duty GMC trucks used for towing and hauling.

167 Oscawana Lake Rd, Putnam Valley, NY 10579

Specialties & Features

Towing package maintenance
Transmission repair (Allison
10-speed)
General GMC service
maintenance

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Garrison

** The GMC repair market in the Garrison area is characterized by a small number of high-quality, independent shops rather than a high volume of competitors. There is no dedicated GMC dealership within Garrison itself, which shifts the demand to trusted local specialists in neighboring communities like Cold Spring and Putnam Valley. The average quality of these top-tier shops is very high, as they rely on reputation and word-of-mouth in a tight-knit community. Competition is based on technical competency and customer service rather than price undercutting. Typical pricing for specialized services (e.g., Duramax injector replacement, Allison transmission overhaul) is in line with regional averages for the Hudson Valley, which are generally higher than national chains but reflect a greater level of expertise and personalized service. Customers in this market prioritize trust and proven results over finding the lowest possible cost. For highly complex Denali electronics or advanced transmission programming, owners may still need to visit a franchised dealership further away, but for the vast majority of mechanical and diagnostic needs, the local providers listed are more than capable.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All shops are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Garrison regulations and climate